amp testing

[dbjunior 0]

how do i calculate power from my amp. if i have my sub wired at 1 ohm and i play a test tone say 60hz and measure the voltage how do i calculate that into watts. i know you multiply volts by current to get watts but how do you know the current at diffrent loads. not sure if im missing something i just always see people say i measured this many volts at this load so it is putting out this many watts and i never see a current measurement. is there a standard current output per load or something. just want to learn a little more thanks

[shizzzon 461]

u need a DMM for voltage and an Ammeter for current.

[dbjunior 0]

i have a dmm so i can test voltage just wasnt sure if there was some formula for current never seem to see anybody mention measuring current even though its the other half of the equation

[fredridge 0]

are you just trying to figure out how much power it is actually putting out? zed audio will do tests, I think the cost is around $100 though